Spring-hinge



.-(No Model.) I

L. M. DEVORE.

I SPRING HINGE. No. 288,984. Patented Nov. 27, 1883.

Kym: atrium:

Io hinge.

20 by caps or 25 diameter.

"siren ra'rns PATENT Fries.

SPRING -H|NGE.

SPECIFICATION forming part of Letters Patent No.

288,984, dated November 27, 1583.

Application filed September 29, 1883. (X model.)

and useful Improvements in Spring-Hinges, of

which the following is a description, reference being had to the accompanying drawings, in which- Figure 1 is aplan view of my improved Fig. 2 is a plan view of the arbor, hereinafter described, and Fig. 6 is a plan view of the same when turned a quarter round from the position shown in Fig. 2. Fi 3 is an under view of the retaining-cap, hereinafter described. Fig. 4 is a top view, and Fig. 5 is a side elevation, of the same.

My invention relates to that class of springhinges in which the spring or springs are coiled about an arbor and are retained thereon retaining-flanges. As heretofore constructed, spring have been made, so far as the adjustment of the spring or springs is concerned, as follows: The arbor has been made of wire of a sufficient The central flange, when such a one was required, as shown at a in the drawin gs, was passed over one end and slipped into place, and the spring or. springs then put on. The end caps were then put on and the end of ,0 the arbor riveted or headed down to retain the caps.

The object of my invention is to obviate the necessity of using 1naterial as expensive as malieable wire, and to do away with the labor 3 5 attendant upon drilling the central hole in the caps and of heading down the ends of the arbor.

To this end my invention consists in casting the arbor with the central flange, if the con- 40 struction requires one, and the retaining-cap each in a single piece, the two of such form, substantially as shown in the drawings, that the cap may be passed over the arbor and retained thereon, and, in its turn, retain the spring in place, all ofwhioh .will be hereinafter more fully described, and definitely pointed out in the claims. I In the drawings, A represents the arbor, B

B the retaining-caps, O C the leaves of the hinge, and D D the springs.

The arbor A is castin a single piece, having the centralflange -hiuges of this character or seat for the spring a", when such central flange is necessary, and on each end the small flanges a a, which retain the cap. Just be hind these flanges a a are the cylindrical portions a, and just back of them the arbor is depressed on opposite sides, making that portion of it, a preferably flat, or nearly so, or at least of a diameter sufficiently small to permit the opening in the cap to pass over it.

The cap is a cylindrical piece, preferably of cast metal, having a circular orifice, b, in the center. The upper portion, as shown in Fig. 5, forms the flange b, which forms a seat for one end of the spring. The portion 1) in Fig. 4 is a depression, into which the flange a of the arbor sets when in position. There is an opening, I), in the cap from the outside to the central orifice. This opening permits the cap to be slipped onto the arbor, and it is also valuable, inasmuch as by its presence I am able to cast the cap with its circular opening, instead of being obliged to drill the hole after the casting is made.

In putting the hinge together the spring or springs are placed upon the arbor and compressed. The cap is then slipped over the arbor at its point of smallest diameter, a and then pushed out to the end. The flanged prevents the cap from flying off the end, and the flange b affords a seat for the end of the sprin The above construction is very simple and much cheaper than the forms of arbors heretofore used, as the parts have only to be put together within the leaves of the hinge. In hinges where only one spring is used the central flange, a5, is of course omitted and only one depression is necessary on the'arbor. In an inferior form of construction the portions a of the arbor which are depressed may extend to the flange a, thus doing away with the cylindrical parts (5., The form illustrated, however, I- consider preferable.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Int. spring-hinge, the co1nbination,with the spring, of a cast-metal arbor having a flange upon its surface depressedjust back of said flanges, and a metal retaining-cap having a central orifice and an opening from the exterior there- IOO to, substantially as and for the purpose set 3. As a new article of manufacture, an arforth. her for aspring-hinge, provided with "flanges 2. In a spring-hinge, the combination, with cast upon the ends, and with a depression in the spring, of a cast-metal arbor having a the sides thereof between the two end flanges, flange upon each end and aflange between said substantially as described; end flan es and havin aportion of its surface depress djhst back ot said end flanges, and a l LEVI DEVORE' metal retainingcap having a central orifice \Vi-tnesses: and an opening from the exterior thereto, sub- E. L. THURsToN,

IO stantially as and for the purpose set forth. Y 'W. 0. Con. 

